Improved syringe



tant ignited WILLIAM J. DAVIDSON, OF S'IAUNTON, VIRGINIA.

Letters Patent No. 88,695, dated April 6, 1869.

IMPRovx-:n sYRrNGn.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom tt may concern Beit known that LWILLrAM J. DAVIDSON, ofStaunton, in Augusta county, and State of Virginia, have inventedcertain new and useful Improvements in Syringes Designed for Medical orother Purposesg7 and I do hereby declare that the following -is a full,clear, and exact description thereof,reference being had to theaccompanying drawings, formingv part of this specilication, and inwhich- Figure l represents a vaginal syringe embracing my improvement,and with the ordinary Indiafrubber tube and bulb.

Figure 2 is a longitudinal section of the same, without the tube'andbulb.

Figure 3 is a syringe-tip, or nozzle, adapted for use4 under the eyelid.

Figure 4 is a sectional view of a nozzle adapted for irrigating thenostrils and upper part of the throat, or pharynx.

Figurerepresents a nozzle adapted for use in the ear, male urethra, anusof infants, wounds, or other small openings.

'Figure 6 is a nozzle designed -for the injection'of adults per mmm.

Each of these instruments embraces one or more features of my invention.A

My invention consists- First, in. so constructing the discharge-openingof a nozzle, that the fluid shall be delivered in a very thin sheet,instead of in ajet, or jets, whereby the force of the discharge is moreevenly distributed over the sur face to be irrigated, and, by rotatingthe instrument, the thin sheet of fluid is caused to strike upon everypart.

Secondly, the invention embraces a novel construction, whereby thenozzle may be reduced in diameter, to facilitate its introduction, andexpanded after insertion.

Thirdly, it includes a peculiar construction of nozzle for washing theunder side of the eyelid, and another vfor bathing the pharynx, or upperpart of the throat,

through the nostril; also, for syringing the ear, the male urethra, andfor injecting infants or adults per amcm.

To enable others to make and use my apparatus, I will describe it byreferring to the drawing.

In iig. l is seen an ordinary elastic bulb, A, or other injector, towhichv is connected by means of a flexible tube, B, the nozzle, D,consisting of a tube, a, which is encased in a tube, '11, the upperportion of which is slotted longitudinally, so as to fcrm elastic, orexpanding ribs, b.

On the upper end-of the tube a is a tip, a', which is finely slit acrossits end', through which, when in use, is discharged a thin sheet ofwater, or other fluid, somewhat semicircular in form. l

Said tube a is also finely perforated on its sides,be tween the ribs b',from which issue lateral jets.

- adapted to variousv purposes.

The tip c', being of larger diameter than the tube a, forms a shoulder,against which the outer tube, b, rests, and at its opposite end is anadjusting-screw, c, which, traversing a male screw onV the periphery ofthe tube a, presses against the end of the outer tube, and causes itsribs b to expand.

The extent of this expansion may be limited, by inserting a pin, orscrew, 1,7m the side of the inner tube, and passing through la slot inthe outer one, the length of saidy slot determining the amount of motionand consequent expansion. v

This screw d also serves'to prevent the one tube re-v volving within oraround' the other.

Before inserting the instrument, the ribs are relaxed,

which allows of its ready entrance, after which they may be expanded,thus distending the parts, and giving the fluid free access in adiffused and gentle manner.

When the purpose is to cleanse the vagina, a gentle rotary motionapplied to the instrument will cause the ribs to detach any secretionsthat may be adherent to its walls, and such motion will also cause asemicircular discharge, from the tip a', to more thoroughly Wash theparts.

The nozzle for the eye, E,g. 3, terminates in a hol low concave-convexdisk, e, adapted to the form of the eye-ball.

The convex side of this disk, and its upper edge, are pierced withminute holes, or the edge may be very nely slit, so as to discharge theduid in a thin sheet, for the purpose of conveying any medicated orsimple liquid to be diffused over the inner surface of the lid, and asfar back as the reilection of the mucous membrane, from the ball to thelid.

The nozzle represented in fig. 4 is designed for conveying fluids to anypart ofthe nares, or nostrils, and the upper part of the pharynx, orthroat. Its tube is bent, for convenience of introduction and guidance,and is long enough to reach through the nares to the pharynx, andterminates in a dat heart-shaped expansion,

G, the greater diameter of lwhich is in the plane of the curve. Thisexpansion is also slit for about half its length, as described inreference to other gures.

This instrument is introduced into the nostril. The expansion G,pointing downward, is to be guided along on the bottom ofthe nostril, tothe spot to be cleansed or medicated, when the fluid is dischargedthrough the slit in Gr, in a diffused sheet, gently bathing the part.

In figs. 5 and 6, the tip ofthe nozzle is similarly con-v structed tothose already described. The former is Its form is that of --a tube,about one-fourth of an inch in diameter, and is reduced, at about halfan inch from the tip, to half that diameter, terminating in a bulb,through the slit in which the duid discharges.

The reduced diameter, forming a shoulder, as at m, is intended as aVguide to indicate the depth to which thev instrument may be inserted inthe ear, Without injury.

This instrument, or nozzle, may also be used for injecting the maleurethra, or infants per mmm.

The nozzle represented in fig. 6 is similar to the lastmentioned, exceptthat it is larger, and is designed only for the injection of adults peram'mn.

What is here claimed, an'd desired to be secured by Letters Patent, is

1. The tip of a syringe-nozzle, construct-ed with a transverse slit,substantially as and for the purpose set forth.

2. The slotted tube b b', in combination with the tube wand itstip a',when so constructed that its ribs bare capable of expansion andcontraction, in the mauner substantially as described.

3. The concavo-convex hollow eye-tip E, perforated or slit around itsupper edge, substantially as and for the purpose set forth.

4. The nozzle, iig. 4, curved to correspond with the channel through theuares to the pharynx, and pro' vided with a suitably-formed tip, G, forits guidance and discharge of the Huid, substantially as and for th'epurpose specied..

5. The nozzle, fig. 5, adapted for inject-ing the ear, male urethra, andanus of infants, substantially as shown and described.

Witnesses: W. J. DAVIDSON.

W. M olmrs SMITH, SYDNEY E. SMITH.

